对映体
色氨酸
纳米材料
化学
氨基酸
吸光度
紫外可见光谱
半胱氨酸
圆二色性
组合化学
有机化学
色谱法
立体化学
材料科学
纳米技术
生物化学
酶
作者
Kaimeng Deng,Shaokai Chen,Hui‐Hua Song
标识
DOI:10.1016/j.saa.2021.120847
摘要
Amino acids play a very important role in the fields of pharmacy and biochemistry, and the identification of amino acid enantiomers has become a research hotspot. In this study, chiral nanomaterials ZnFe2O4-L-Cys (Cys = cysteine) were prepared by the mechanical stirring method and characterizad by different kinds of techniques. The effect of pH and Cu2+ on the recognition of tryptophan by chiral nanomaterials ZnFe2O4-L-Cys was further explored by ultraviolet-visible spectroscopy. The experimental results show that when the pH of the recognition environment is neutral, ZnFe2O4-L-Cys can be used as chiral selectors for tryptophan enantiomers in the presence of Cu2+ and the absorbance of L-Trp is always stronger than D-Trp within a certain concentration range, which provides a novel and convenient way for the chiral recognition of tryptophan enantiomers.
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